Source:http://linkedlifedata.com/resource/umls/id/C0750995
NCI: Non-malignant neoplasms that arise from cerebellar tissue. During childhood the most common form is pilocytic astrocytoma although fibrillary astrocytomas may also occur. These tumors may present with slowly progressive signs caused by a slowly expanding mass lesion or acutely due to hemorrhage of a vascular tumor. Clinical signs and symptoms may include ataxia, nystagmus, spasticity long tract signs, headache, nausea, vomiting, papilledema, diplopia, spasticity, and weakness, etc.)